Overview
HuiNuo JYW-200A automatic table interfacial tension tester is a very high performance and cost-effective table and interfacial tension test instrument. The instrument adopts liquid crystal digital display, which displays the test results immediately after the test, and can also automatically average the multiple test results, which can adapt to various liquid surface tension and interfacial tension tests.
Features
1. Ring test method, using scientific tension value correction method, namely standard weight calibrating and quasi-material calibrating.
2. Integrated molding shell and precision direct drive mechanism, improve the Reliability and durability of the instrument, and the transmission mechanism has no vibration.
Using 32-bit ARM high-end microcontroller control, fast operation speed, high accuracy, special preparation filtering algorithm to ensure stable and accurate indication.
4. Adopting high-end 24-bit AD converter from American ADI, the conversion speed is fast and the force value acquisition is more accurate.
5. The improved torsion wire lever structure makes the motion track of the Sensor core close to a straight line, ensuring the test Linearity.
6. Using China's high-end LVDT Displacement Sensor, Linearity is good, Output signal is sensitive, impedance matching is accurate, and testing and repeability accuracy are guaranteed.
7. The instrument has an automatic stop function. When testing the surface tension, it can be set to automatically stop. After the test is completed, the labjack automatically stops and displays the tension value.
8. Unique automatic averaging function automatically averages and displays multiple test results, reducing the workload of operators.
9. Adopt digital LCD screen display, displaying real-time values on one side and test results on the other, making it convenient to read test results directly.
Principle
The instrument adopts the ring method to measure the surface tension and interfacial tension by pulling up the liquid film through the platinum ring. The scientific tension value correction method is adopted, including standard weight calibrating and quasi-material calibrating, to eliminate the errors caused by the shape and pollution of the platinum ring.
Applications
Liquid surface tension test, interfacial tension test
Standards
SY-T5370 "Determination of surface and interfacial tension", GBT 18396-2001 "Determination of surface tension by natural Latex ring method", GBT6541-86 "Determination of oil-water interfacial tension (ring method) ", QB-T 1323-91 "Determination of detergent surface tension", ISO 304-1985 "Surfactant. Determination of surface tension by pulling up liquid membrane method"
Steps
1. Prepare test samples and instruments.
2. Select the surface tension or interfacial tension test mode as needed.
3. Set the automatic stop function (optional).
4. Start the test and the instrument will run automatically.
5. After the test is completed, the labjack automatically stops, and the LCD screen displays the tension value.
6. If multiple tests are required, the instrument can automatically calculate the average value and display it.
Notice
• Power supply voltage of the instrument is 220V/50Hz before use.
• Regularly correct platinum rings with reference materials to eliminate errors caused by shape changes or contamination.
• Avoid platinum ring contamination and affect Test accuracy.
• Ensure a stable environment during testing to avoid vibration interference.
• The instrument weight is 7.5Kg, pay attention to safety when handling.
